| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Outline of Final Research Achievements |
Ozone is a strong oxidizing agent and it can be applied to water treatment, air pollution control etc. In this work, in order to measure the NOx concentration in ozone gas generated by a homogeneous dielectric barrier discharge (APTD) in air, the method for quantitative analysis of NOx by an FTIR spectrometer with a long path gas cell (3 m) was developed, and the effects of gap length of the DBD device, gas pressure in the plasma zone and discharge modes were investigated. As the results, (1) a low reduced electric field condition, which occurred at long gap length or high gas pressure, is desirable for the reduction of N2O emission. However, it is not desirable for the efficient ozone generation. (2) The effect of 3 different discharge modes (conventional filamentary DBD, APTD and combined discharge of conventional filamentary DBD and APTD) were investigated, and the lowest N2O concentration at the same ozone concentration was achieved by the combined discharge mode.
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